Shopify Inventory Management: Complete Guide for Growing Stores

Shopify's Built-In Inventory Features

Shopify provides core inventory tracking out of the box:

Inventory tracking per variant. Every product variant (size, color, material) has its own inventory count. Go to Products > select product > scroll to Inventory section. Enable "Track quantity" and enter your stock count.

Multi-location support. Assign inventory to multiple locations (warehouse, retail store, 3PL). Shopify routes orders to the nearest location with available stock. Set up under Settings > Locations.

Inventory adjustments. Manually adjust stock for received shipments, damaged goods, or corrections. Products > Inventory > select product > Adjust quantity.

Transfer tracking. Transfer inventory between locations. Products > Transfers > Create transfer. Track status from pending to received.

Low stock reports. Analytics > Reports > Inventory reports show products at or below threshold levels. Set these per-variant to get alerts before you run out.

Inventory history. View a log of every inventory change — sales, adjustments, transfers, returns. Useful for auditing discrepancies.

Setting Up Inventory Tracking

Step 1: Go to Products in your Shopify admin. Select a product.

Step 2: In the Inventory section, check "Track quantity."

Step 3: Enter the current stock count for each variant at each location.

Step 4: Set the "Continue selling when out of stock" toggle. Turn this OFF unless you can reliably backorder from suppliers within a few days. Selling items you don't have creates customer service nightmares.

Step 5: Repeat for every product. Yes, this is tedious for large catalogs. Use the bulk editor (Products > select all > Edit products) to update multiple SKUs at once.

Step 6: Set up inventory tracking for new products by default in Settings > Products.

SKU Strategy

Every variant needs a unique SKU (Stock Keeping Unit). A good SKU system saves you hours of confusion:

Format: CATEGORY-PRODUCT-VARIANT

Examples:

• •TS-BASIC-BLK-M = T-Shirt, Basic, Black, Medium
• •MUG-LOGO-WHT = Mug, Logo, White
• •SUP-VIT-D-60CT = Supplement, Vitamin D, 60 Count

Rules:

• •Keep it short (under 15 characters)
• •Use letters and numbers only (no spaces or special characters)
• •Make it human-readable — someone in your warehouse should understand the SKU at a glance
• •Be consistent across all products
• •Never reuse a SKU, even for discontinued products

Multi-Location Inventory

If you fulfill from multiple locations:

Priority-based fulfillment. Shopify lets you rank locations in priority order. Orders are assigned to the highest-priority location that has stock. Set this under Settings > Locations > drag to reorder.

Split fulfillment. If one location has item A and another has item B, Shopify can split the order. The customer receives two packages. You pay shipping twice. Use "Fulfill from one location when possible" to minimize splits.

Location-specific inventory. Each location has its own stock count. When you receive 500 units at your East Coast warehouse, add inventory only to that location. Shopify tracks each location independently.

When to add a second location: When shipping time or cost to distant customers is hurting your conversion rate or margins. A second fulfillment location in a different region typically reduces average shipping cost by 20–30% and delivery time by 1–2 days.

Inventory Counting and Audits

Cycle counting is the most practical approach for growing stores. Instead of counting everything once a year (physical inventory), count a subset of products every week.

How to cycle count:

1. Sort products by revenue contribution (A = top 80% of revenue, B = next 15%, C = bottom 5%)
2. Count Category A products monthly
3. Count Category B products quarterly
4. Count Category C products twice a year

When discrepancies arise:

• •Check for unfulfilled orders that reduced inventory
• •Check for returns that weren't restocked
• •Check for transfers in transit
• •Look for theft or damage (especially in retail locations)

Correct discrepancies immediately using inventory adjustments. Letting them accumulate makes the problem exponentially harder to fix.

Best Inventory Management Apps

Stocky (Free with Shopify POS Pro)

Best for: Stores using Shopify POS that need purchase orders, stock transfers, and basic demand forecasting.

Features: Purchase order creation, supplier management, stock transfers between locations, demand forecasting based on sales velocity, and inventory reports.

Cin7 (From $349/month)

Best for: Stores doing $1M+ in revenue with complex supply chains, multiple warehouses, and multi-channel selling.

Features: Full inventory management, purchase orders, B2B integration, warehouse management, demand planning, and integrations with 500+ apps.

ShipBob Inventory (Free with ShipBob fulfillment)

Best for: Stores using ShipBob for fulfillment that want inventory visibility across ShipBob's warehouse network.

Features: Real-time inventory across all ShipBob locations, reorder point notifications, inventory analytics, and bundle tracking.

Katana (From $99/month)

Best for: Stores that manufacture their own products and need production planning alongside inventory management.

Features: Manufacturing resource planning, bill of materials tracking, production scheduling, raw material inventory, and shop floor control.

Common Inventory Mistakes